• Title/Summary/Keyword: Biaxial Retarder

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A Study on the Optical Characteristics of Biaxial Film by using Dual Rotating Retarder Polarimeter and a Novel Simulation Model

  • Yun, C.H.;Jeon, B.K.;Park, M.S.;Yu, J.S.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2006.08a
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    • pp.809-813
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    • 2006
  • We have studied the optical properties of the biaxial film such as fast axis, retardance and the change of polarization state between crossed polarizer using dual rotating retarder polarimeter. We have developed a novel simulation model, which could explain well the experimental results, and found that it could be used to optimize the compensation film in LCD for improving wide-viewing property.

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Biaxial Integrated Optical Film for VA Mode LCD's Made from In-situ Photopolymerised Reactive Mesogens

  • Kim, Kyeong-Hyeon;Lyu, Jae-Jin;Chung, Dong-Hoon;Verrall, M;Slaney, K;Perrett, T;Parri, O;Lee, Seung-Eun;Lee, Hee-Kyu
    • Journal of Information Display
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    • v.5 no.2
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    • pp.23-26
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    • 2004
  • For high end, large area displays, all current LC modes require some degree of optical compensation to improve the front of screen viewing experience. Currently most optical films are laminated to the outside of the LCD cell, between the glass and polariser. In this paper we wish to show how it is possible to integrate the compensating optical film within a VA mode LCD cell. The paper will describe the process of making the biaxial film through the process of in-situ photopolymerisation of an aligned film of reactive mesogens in the cholesteric phase using polarised UV light. The film can be made on the colour filter array side of the LCD panel. In addition the process of fabricating a VA mode LCD containing this film will be described and the performance of this module will be presented.